Piano.



To a-ZZ fw 7mm 'it 'may coa-ccm 4is fastened around the scew 20.1 Wh?.

RAY W. SCOTT, OFNE'W YORK, 1\T, Y., ASSG'N ACTION. CO., A GG'BPORSpecification of Letters Patent.

ira-tenten n en'. io7 reif/ a A lication filed Se' teinher i3, 191'.Serial No. 5-395.

Be it known that I, RAY XV. Scor'r, citi- Zen of the vrUnited States,residing at New York city, in the county ot' New York State of New-York, have invented certain new and useful Improvements in Pianos. voitwhich the following` is a specilical'icni7 retv erence being had thereinto the accompanying drawing.

My invention relates to improvements in automatic piano players and hasparticular reference to the manner of constructing and lattaching thepneuinatics and other operat ing,- mechanism. The pneumatics are prei"-erably o1". about the same width as the piano keys and are preferably somounted that they may7 be readily attached toor removed from theordinary manually operated piano.

Referring to the accompanying drawings7 Figure 1 is a partial sectionalView oit' a piano illustrating an application ot my invention. Fig. '2is a plan view partly broken away illustrating the music roll mechanism,more particularly set forth and claimed in my co-pending application'Serial No. 742414, filed January 16, 1913, and iEig. 3 is a plan Viewpart-ly broken away illustrating some of the keys and pneumatica inposition. f

l-is the key bottom provided with suitable bearings 5 and G to hold thekey 'in position, and Slis the frontboard of the piano.

9' is a portion of the regular piano action and 10 is the usualyactionrail.-

11 is the usual key slip.

' 12. is tl e windfway preferably running the entire length of thekeyboard and by means of which the airis exhausted from the variouspnoumatics.

13 is a suitable bar also preferably running the entire length of thekey board for supporting tlie'front ends of the pneuinatics. Thepneumatic 14 is preferably provided with au inclined front section asshown and is normally open to the' atmosphere through the out 15 andslot 16 so that wlieniat rest the pneumatic and key are in. theposit-ion shown in Fig. 1. The operating'connection between the key 7and the pneumatic 14: is represented by the cord 17 .which is'fast-enedto the top of the pneumatic, then passes through an aperture in thebottom board Il? thence through thecleat 1S' and the aperture 19 of thekey 7 where V'the other id thereby elevatin andv also so a:

this position air is drawn through the tube troni the windf'ay 1:2 whichexhausts each pneumatic through the cut 22 and the' chamber is tubewhich connects "with the hoard 25 so that when a perforation music QGallows air to enter 'lirough said tracker board, it sV to tl e primarypneun'iatic 27 thereby causing` y sanie to inflate under influence ofthe 'Vacuous condition in the chamber 23 post 2S secured to the top ot'thep in ry pneumatic i217 and causing the valve :(19 to lilt from itsseating. This allows the suction to cpeate through the cut troni thepneumatic 1% whichI causes the top '23o to descend pulling upon the co d17 and causing-the key'r( to raise the ac n 9. After the perforation inthe sheet of .unisi c 2G has passed the perforation in the tracker hoard25 and air no longer enters thetube 24. the air remaining in the 'tube2l is drawn ott' through the `bleed hole 31 and the post 2S againdescends. as the bag 2'? (letlates thereby allowing the valve ih) tobecome reseated thus rcstablishing the normal condition. ,lt will beobserved that when the valve 29 'is raised and the pneumatic .is inoperation, the air drawn through'the suction is out olf from the slot.i6 communicating' with the atmosphere and that the pneumatic 1f isagain brought into conin'i 'l i atmosphere through the slowu 1G as soonin lye 29- becomes resea'ted. i i other wirds. when the pneumatic iatedv the cord pulls the rey .lewin pneumatic is iulated the key u i ainormal position. In order to adjust, the length of the cord 1T, it isonly necessary to remove the front board oit the piano and the stroke ofany key may Ibe adjusted by tightening or loos ening the cord 17 aroundthe screw Q0. As lar as 7l :un aware it is neu in the art to providethis ymeans of adjustment. The

.pneumatic itsell is deem-ned. and built along novel lines. To Vthebeast of my knowledge it is ne f in the art to prot/'ide a pneumatic ollthe saine witlt cs the width of the key, Lhat repairs can easily i: too* be rn the operator, when the keys are operated manually.

The pneumatics may be connected by a suitable rod such as 32 and may besecured to the wind-way and key bottom 4 by screws such as 33 or in anyother suitable manner. The front of each pneumatic is also preferablysecured to the rod or bar 13 by a screw such as 34. From thisarrangement it will be understood that the pneumatics may be placed inposition and removed collectively or by withdrawing the rod 32 may beattached and removed separately.

35 and 35a are `brackets secured tothe front and back pneumatic supportscarrying the rack 36. This rack carries the frame 37 which is adapted toslide thereupon and which is provided with bearings 38-38 having armssuch as 39-39a and pinions such as 40*40a, so that as the arm 39 isswung outwardly and downwardly upon the bearing 38, the frame 37 iscaused to recede beneath the front of the piano.

41 and 42 are the usualspools upon which the perforated music ismounted. The music is preferably taken o i" the spools before theframework is turned beneath the piano as stated.

44 is a vertical slot or guide cut in the bar 13 to receive theprojection 43 which may 30 of the 5 be suitably secured to the topneumatic. This serves to guide the movement of the pneumatic when inoperation. The front ends of t-he lower portion of the pneumatic arealso preferably terminated in forks such as 45. This permits of a littleadjustment and at the same time is convenient in attaching and removingthe pneumatics.

It will be seen that everything below the key bottom may be removed bywithdrawing the screws 33 and 34. Of course the screws 34 need not allenter the key bottom 4.. The majorit of them may be much shorter Asimplyto"1old the end of .the pneumaticand the same applies to the screws 33.It is'not necessary that,l these screws should be so long as topenetrate the key bottom 4,ithe preferred form of construction being tomake the windwvay 12 and the bar 13 serve as a frame for the pneumaticsso that by loosening a few of the longer screws 33 and 34, everythingbelow the key bottom may be removed, it being understood that thefrontpboard 8 has been previously removed and the screws Q() loosenedfrom the cords 17. Of course it will be understood that variw ousmodiiications may be made without departing from the spirit of theinvention as set forth in the claims.

Having described my invention, what l claim as new, and desire to secureby Letters Patent, is:

1..ln an apparatus such as described, keys, pneumatics to voperate thesame, means. for operatively supporting said pneumatics in a single rowbeneath and in line with said keys, said pneuma-tics having an inclinedfront. section, and a spool frame secured parallel to said inclinedfront section.

2. ln an apparatus such as described, keys, pneumatics to operate thesame, means for operatively supporting said pneumaties beneath saidkeys, said pneumatics havingY an inclined front section, and a spoolframe secured parallel to saifl inclined front sec tion and beingadapted. to swing downwardly and rearwardly beneath the same.

3. In an apparatus such as described,

keys, pneumatics to operate the same, means for operatively supporting'said pneumatics in a single row so that each of said pncumatics arebeneath and arein a. vertical line with said keys, said means comprisingfront and back "supports, cords connecting said pneumatics and saidkeys, each of said cords secured forward of the center of the top ofthelkey and passing through the same to a point at the front and belowthe key to the forward movable portion of the pneumatic beneath thesame.

In testimony whereof l aflix my signature in presence of two witnesses.

RAY W. SCOTT.

Witnesses Louisa ENDnRLn, THOMAS A. HILL.`

